Yvonne Shell is currently a forensic  clinical psychologist working in the fields of Addictions and Sex Offender Treatment. Her career has previously included working in both medium and maximum security settings for the Ministry of Justice,  and also in medium and maximum security psychiatric establishments such as Broadmoor Hospital, specialising in the assessment and treatment of sexual offenders and  working with those diagnosed with personality disorders. She has also worked as an Expert Witness and worked directly with Police Services to  develop initiatives to address local areas of identified need.  Yvonne has also held a Senior Academic post at Canterbury Christ Church University and Honorary posts at the University of Surrey, University of Portsmouth and Canterbury University.